Chris Powell

Trainer and Transformation Specialist on ABC's "Extreme Makeover: Weight Loss Edition"

Dan Abrams

Chief Legal Affairs Anchor at ABC News & Founder of Abrams Media

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Dr. Ian Smith returns to reformatted ‘The Doctors’ as new host

Alice Waters

Executive Chef, Founder & Owner of Chez Panisse; Sustainable Agriculture Advocate

Alice Waters Talks Chez Panisse, Starting a Victory Garden, and ...

Jen Selter

Fitness Personality & Instagram Celebrity

Vinod Khosla

Co-founder of Daisy Systems; Founding CEO of Sun Microsystems

Ellie Krieger

Chef, Nutritionist, Best-Selling Author & Television Host

Sheena Iyengar

Columbia University Business Professor & Bestselling Author of "The Art of Choosing"

Laila Ali

Undefeated Four-Time World Champion Boxer & Lifestyle Expert

Ice-T

Rapper, Record Producer, Actor Known for "Law & Order: SVU"

Jackie Joyner-Kersee

Olympic Legend, Philanthropist, American Record-Holder in the Long Jump & Founder of the Jackie Joyner-Kersee Foundation

Charlie Rose

Anchor and Executive Editor

Mayim Bialik

Neuroscientist & Actress, Known For "The Big Bang Theory"

Anthony Anderson

Actor, Producer, Comedian, Writer & Game Show Host, Best Known for ABC’s "Black-ish"

John Foley

Former Lead Solo Pilot for the Blue Angels; Founder & CEO of CenterPoint Companies

Jeffrey Pfeffer

Stanford Professor & World-Renowned Management, Leadership and HR Scholar

Andrew Zimmern

Four-Time James Beard Award-Winning TV Personality, Chef, Writer & Teacher

Vicki Lawrence

Actress, Comedian & Women's Activist; Best Known for her Characters on "The Carol Burnett Show"

Phylicia Rashad

Advocate for Children, Women's Issues & Fine Arts; Actress Best Known for "The Cosby Show"

Diana Nyad

First Person to Successfully Swim from Cuba to Florida Without the Protection of a Shark Cage; Sports Journalist & Broadcaster